Steam gage-cock.



J. W. FULLER.

STEAM GAGE COCK.

APPLICATION FILED APR. 4, 1910. 1,037, l 76.,

"hares I JOHN Vi]. FULLER, OF JERSEY CITY, NEW JERSEY, ASSIGNOR OF ONE-HALF TC W. NEARPASS, 0F JERSEY CITY, NEW JERSEY.

STEAM GAGE-COCK.

l ANNA 76.

Specification of Letters Patent.

'latentcd Aug. 27, 1912.

Application filed April 4, 1910. Serial No. 553,430.

To (:72 207mm i2 may concern llc it. known that l, JonN ll". FULLER, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented new and useful IHPI'OYQHIQHlS in Steam. (lage- (Vceks, of which the following is a specification.

This invention relates to improvements in steam gage cocks, and the object. is to provide a cock of simple and improved construction which will operate in anellectivc manner and which is durable in construction.

\Vith the aboveobjcct in view, the invention consists in the novel features of eonstruction hereinafter fully described, particularly pointed out in the claims, and learly illustrated by the accompanying dawing, in which--- Figure 1 a side elevation of a steanr gage cock constructed in accordance 'with my invention: Fig. 2, a longitudinal sectional view through the same, and Fig. 3, a view of the valve-stem.

Referring now more particularly to the drawing, the numeral 1 indicates the body or globe, and 2' the gland threaded upon the upper end thereof, packing 3 being ar ranged at that end for the valve-stems At its lower end the body is formed with a flange 5 and a screw-threaded portion (3 to engage the screw-threaded upper .end of the barrel or shank,7 which is exteriorly threaded at its lower end to screw into the boiler, theflange 6 forming a steam-tight joint. The body is provided with the nipple. 8 as illustrated. The barrel or shank is formed at its lower end with a seat 9 and near its upper end with screw-threads l0 at'the upper end of which is a chamber in which one of the valves carried by the valve stem is movable to engage with a seat 11 formed at. the upper end of the chamber.

12 designates the valve stem having a handle atits outer end by means of which it may be rotated to seat or unseat its valves. It. is provided near its lower end with a threaded portion 13 to engage the screwthreads 10 of the barrel or shank, the threads .10 and those of the stem being lefthand. At. its lower end said stem carries a valve 14 which is screwed thereon so as tov be detachable. This valve is of hard material and it may be detached and ground without the necessity of a special machine. Said stein carries, above the, screw-threaded portion, a substantially cupshaped valve 15 in which a disk 16 preferably of hardrubber is inserted, which is adapted to on gage the seat 11. The cup-shaped valve holds the disk from breaking or spreadin Extending through the screw-threaded portion are. passages 17 for water, while the stem above and adjacent. to the valve 15 is formed on opposite sides with grooves 18 to permit the steam to pass to the globe or body and the nipple.

My gage cock will not: leak water when there is no pressure on the boiler, as it is not shut off by boiler pressure, being closed and operated by a screw stem turned by the hand, and if there should be a leak through pairs as there is only one thread on which the cock is operated and. further it will not et who ed 11) as a wire can be drawn 1 through the small holes while the pressure. is on the boiler. 7

If the disk gives out on the road the cock can be screwed down and operated on the 'hard scat also the cock can be operated on both seats.

Having thus fully described my' invention what I claim as new and desire tose euro by Letters Patent of the United States, 1s:'

1. A steam gage cock comprising a barrel, a body portion removably mounted on.

said barrel, a valve-stem threaded into the barrel and having passages therein and-two valves rigidly arranged on said ,stem and interposed between the barrel and body-portion, said valves adapted to seat at opposite limits of movement of the 'stem. 1

2. A steam gage cock comprising a barrel, a body portion removably mounted on said barrel, .a valve-stem threaded into the barrel and having passages therein, valves carried by the stem, one aboye and one below, the threadedconnectionlbf the stem with the barrel, and seats in the barrel and body for said valves.

3. A steam gage cock comprising a bar-- rel, a valve seat formed within said barrel, an internally threaded portion above said adopted '50 co-act with said first menfioned kneaded porhon, and by-pass ports for conducting the fluid past sald threaded port-Ion of the Valve stem.

in testimony whereof I afl'lx my signzi- 15 ture in the presence of Two Witnesses.

JOHN WY. FULLER. W it-mews CHAS. F. TAYLOR, (buns ZVIQLELLAX. 

